I felt bad when someone else pointed out it was a bit rude. At the time I just accepted it.
Ir ealisedquite early on I don't get on with my supervisor's style and get quite depressed/lose confidence about work. I'm just sticking it out and finishing (near submitting) so I can move on. I've decided Science isn't for me, that it's a struggle to be tough and accept criticism/insecurity in experiments/academia generally.